Habit: saprophytic herbs

Rhizome: noded, with fleshy roots

Tuber: present

Stem: without leaf

Inflorescence: type: raceme, panicle

Inflorescence: position: terminal or subterminal

Inflorescence: other characteristics: rachis pubescent or zigzagged flexuose or winged

Sepal: abaxially hairy

Petal: base connivent to sepals or with claw

Labellum: adnate to column, not lobed

Column: without column foot

Pollinia: number: 2

Pollinia: other characteristics: granular-farinaceous, without appendage

Fruit:type: fleshy

Fruit: other characteristics: indehiscent

Seed: with thick testa, wingless, winged